复杂介质中电荷载流子转移的微观模型
摘要
我们提出了在常数电场作用下，复杂介质中电荷载流子转移的微观模型。 generalizations previous theoretical approaches, we model the dynamical environment hindering the carrier motion by dynamic percolation, i.e., as a medium comprising particles which move randomly on a simple cubic lattice, constrained by hard-core exclusion, and may spontaneously annihilate and re-appear at some prescribed rates. 我们解析了从稳态移动电荷载流子视角看到的环境粒子的密度分布，并计算了其终端速度作为施加电场及其他系统参数函数。我们认识到，在足够小的外部场作用下，环境粒子对载流子所施加的力表现出粘性行为，定义了此类动态孔隙介质的Stokes公式类比。相应的摩擦系数也被推导出来。
引用
@article{arxiv.cond-mat/0506029,
title = {Microscopic Model of Charge Carrier Transfer in Complex Media},
author = {O. Benichou and J. Klafter and M. Moreau and G. Oshanin},
journal= {arXiv preprint arXiv:cond-mat/0506029},
year = {2009}
}
备注
appearing in Chem. Phys. Special Issue on Molecular Charge Transfer in Condensed Media - from Physics and Chemistry to Biology and Nano-Engineering, edited by A.Kornyshev (Imperial College London), M.Newton (Brookhaven Natl Lab) and J.Ulstrup (Technical University of Denmark)